/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.mesos.runtime.clusterframework;

import org.apache.flink.mesos.runtime.clusterframework.store.MesosWorkerStore;
import org.apache.flink.runtime.clusterframework.types.ResourceID;
import org.apache.flink.runtime.clusterframework.types.ResourceIDRetrievable;
import org.apache.flink.util.Preconditions;

import java.io.Serializable;

/**
 * A representation of a registered Mesos task managed by the {@link MesosResourceManagerDriver}.
 */
public class RegisteredMesosWorkerNode implements Serializable, ResourceIDRetrievable {

	private static final long serialVersionUID = 2;

	private final MesosWorkerStore.Worker worker;

	public RegisteredMesosWorkerNode(MesosWorkerStore.Worker worker) {
		this.worker = Preconditions.checkNotNull(worker);
		Preconditions.checkArgument(worker.slaveID().isDefined());
		Preconditions.checkArgument(worker.hostname().isDefined());
	}

	public MesosWorkerStore.Worker getWorker() {
		return worker;
	}

	@Override
	public ResourceID getResourceID() {
		return MesosResourceManagerDriver.extractResourceID(worker.taskID());
	}

	@Override
	public String toString() {
		return "RegisteredMesosWorkerNode{" +
			"worker=" + worker +
			'}';
	}
}
